Cam spring advice - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

GTOWN · 10-27-2015, 12:44 AM

Just after some advice for the correct valve spring kit for a brian Tooley 227/234 614' 578 113+2 camshaft , the reason I ask is it has comp 918s at the moment rated to 625' lift and one spring broke over the weekend, the car had the cam done less than 8 month ago, and never driven hard.
Im alittle be wildered why its broken, is the 918 is the culprit??

3rdgen3 · 10-27-2015, 12:59 AM

Not enough cushion for the springs limit would be my guess. You're not supposed to run a spring at or near the limit of its lift.

I would consider moving to BTR's .660 platinum double spring kit if I were you and never look back.

christianchevell · 10-27-2015, 07:49 AM

Having had trouble with a spring I would have to agree you should have had springs more in the .650 range and may have just gotten a bad spring or had a over rev weaken the spring. Your lucky if you have not had engine damage and the second spring saved it. You may just have gotten a bad spring.

Bodywerks · 10-27-2015, 07:59 AM

I fully recommend the btr660's as well, but not because of the lift rating. They are just a better spring.
Lots of other reasons the 918 could have broke. Springs weren't broken in properly, install height was wrong, bad spring out of the bunch, etc. Or the cam lobes are too aggressive even for only 614 lift. If a spring is rated for .625 lift then it is designed to handle that much lift when installed and used properly.
I chose the btr660 for my build, which has a 232/240 .654/629 pat g cam, and I fully expect the springs to perform well, because I installed them properly and will break them in properly.

JDP Motorsports · 10-28-2015, 01:27 PM

We use the BTR .660 Platinum Springs in our camshaft packages. We haven't had any issues to date.

Kind regards,

Jordan Priestley
888.308.6007

LSX Camaro · 10-28-2015, 01:37 PM

+1 on the BTR .660" springs.

vroomapunk · 10-29-2015, 09:37 AM

+9 on the btr .660's

RankSS · 10-29-2015, 10:00 AM

You are very lucky there was not engine damage as the 918's are a single beehive.
I had the 918's as well but changed to the BTR .660's because I wanted the security of the dual spring and I heard lots of good things.

Joseph1LE · 10-29-2015, 11:55 AM

Another vote for BTR .660. However you could just call Brian Tooley and see what he recommends for his cam...

Ajdin@A2BMotorsport · 10-29-2015, 12:21 PM

+1 BTR .660 springs

GTOWN · 11-04-2015, 08:02 AM

Ok guys thanks for the replies.....
The car is back on the road, the tuner put in BTR Dual kit, and im alittle bemused but reakons it had comp 650' lift single springs but on my invoice its says the part numbers for 918s and furthermore I have the comp box with my std springs which is for 918's, never the less, one spring snapped clean in half, no damage to the engine, so I got extremely lucky on this one, but im very happy the shop did the right thing and fixed the car and new springs for free....happy days are here again .

Fast6.3 · 11-07-2015, 03:23 PM

Thats nice that the shop stood behind their work

spadz93 · 11-10-2015, 09:28 AM

I've seen way too many people talk about the BTR .660 springs. Don't have them personally yet, but when I get my build done, i'm using those

Jason 98 TA · 11-13-2015, 10:45 AM

Texas Speed has a .660 lift spring kit using pac doubles on special right now! You can also get a tsp camshaft with Callies camshaft core in 5150 or 8620 materials! As you can imagine a Callies core is top notch and so a cam failure is very unlikely!

10-27-2015, 12:44 AM	#1
GTOWN Drives: Holden HSV Clubsport LS3 Join Date: Jan 2015 Location: Australia Posts: 41	Cam spring advice Just after some advice for the correct valve spring kit for a brian Tooley 227/234 614' 578 113+2 camshaft , the reason I ask is it has comp 918s at the moment rated to 625' lift and one spring broke over the weekend, the car had the cam done less than 8 month ago, and never driven hard. Im alittle be wildered why its broken, is the 918 is the culprit??

10-27-2015, 12:59 AM	#2
3rdgen3 10-bolt Destroyer Drives: 2012 Camaro 2SS/RS - AGM, LS3/6M Join Date: Jun 2012 Location: Canukistan Posts: 860	Not enough cushion for the springs limit would be my guess. You're not supposed to run a spring at or near the limit of its lift. I would consider moving to BTR's .660 platinum double spring kit if I were you and never look back. __________________ 2012 Camaro 2SS/RS - LS3/TR6060: Cam, Headers, Exhaust, Intake, Gears, Twin Disk, Suspension, Tuned - 475rwhp, 443rwtq

10-27-2015, 07:49 AM	#3
christianchevell old school chevy rodder Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012 Location: Oregon Posts: 5,587 View My Garage	Having had trouble with a spring I would have to agree you should have had springs more in the .650 range and may have just gotten a bad spring or had a over rev weaken the spring. Your lucky if you have not had engine damage and the second spring saved it. You may just have gotten a bad spring. __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop

10-27-2015, 07:59 AM	#4
Bodywerks Drives: 2015 2SS/RS/1LE Join Date: Feb 2015 Location: Tucson Posts: 866	I fully recommend the btr660's as well, but not because of the lift rating. They are just a better spring. Lots of other reasons the 918 could have broke. Springs weren't broken in properly, install height was wrong, bad spring out of the bunch, etc. Or the cam lobes are too aggressive even for only 614 lift. If a spring is rated for .625 lift then it is designed to handle that much lift when installed and used properly. I chose the btr660 for my build, which has a 232/240 .654/629 pat g cam, and I fully expect the springs to perform well, because I installed them properly and will break them in properly. __________________ 2015 SS/RS/1LE HSA delete, VMAX throttle body, CAI inc. Intake, PRC255 heads, BTR 660 springs, BTR cryo-treated rockers, PAT G 232/240 .654/.626 110+2, johnson 2110's, Manton 502 pushrods, C5R, Melling high volume/high pressure, Powerbond 25% underdrive pulley, Proform covers, Kooks stepped headers, catless mids, Doug Thorley exhaust. 512rwhp, 446rwtq on a mustang dyno, tuned by Cunningham motorsports.

10-28-2015, 01:37 PM	#6
LSX Camaro Master ASE, GM, LSX Tech. Drives: 2010 Camaro SS Join Date: Oct 2012 Location: Austin, TX Posts: 1,034	+1 on the BTR .660" springs. __________________ 2010 2SSRS A6, Custom Pat G. Cam, WCCH Cylinder Heads, Kooks Headers/Exhaust, BTR Valvetrain, Fluidampr 25% UDP, All Engine ARP bolts, Flex-a-lite radiator/Trans cooler, Yank converter, PFADT Suspension, ADM Race Intake/Scoop, Torq tow hook, CFD auto shifter, Dynojet AFR gauge, Aeroforce scan gauge, Brake Performance rotors/pads Prothane bushings, ZL1 wheels, spoiler, Z/28 wickerbill, 1LE Aero/Suspension Package, Anderson Composites COPO Carbon Fiber Hood, LED lighting, Elite Catch Can, Improved Racing oil pan baffle, crank scraper, windage tray 480 RWHP 452 RWTQ + Nitrous Express 150 Shot

10-28-2015, 01:27 PM	#5
JDP Motorsports Drives: 2011 Camaro SS/ 2016 Camaro SS Join Date: Jun 2009 Location: Sandy, Utah Posts: 3,256	We use the BTR .660 Platinum Springs in our camshaft packages. We haven't had any issues to date. Kind regards, Jordan Priestley 888.308.6007

10-29-2015, 09:37 AM	#7
vroomapunk [COTW 5/12/14] Drives: 2012 CRT NF Cammed 2SS/RS For Sale Join Date: Oct 2011 Location: NOLA Posts: 6,115 View My Garage	+9 on the btr .660's __________________

10-29-2015, 10:00 AM	#8
RankSS Drives: 2010 Camaro SS Join Date: Oct 2013 Location: Saskatoon SK Can. Eh Posts: 365	You are very lucky there was not engine damage as the 918's are a single beehive. I had the 918's as well but changed to the BTR .660's because I wanted the security of the dual spring and I heard lots of good things. __________________ 2010 Camaro SS RS, Maggie with 3.4" pulley, 60# injectors, ADM dual fuel pumps, ADM Stage 2 Cam with Brian Tooley springs and pushrods, black CAI intake, Stainless Works long tube headers w/gutted cats, ZL1 Diff w/offset bushings, Pfadt lowering springs, Pfadt sway bars, Pfadt solid sub frame mounts, BMR trailing arms and toe rods, Hurst short throw shifter, Painted on Hugger Orange stripes, Forgestar F14 Piano Black wheels, Nitto NT05 rubber.

10-29-2015, 11:55 AM	#9
Joseph1LE Drives: 2015 Camaro SS 1LE, 2001 Camaro SS Join Date: Jun 2015 Location: Miami Posts: 836	Another vote for BTR .660. However you could just call Brian Tooley and see what he recommends for his cam... __________________ 2017 GMC Canyon All Terrain- daily driver/dirt bike hauler 2015 Camaro SS 1LE- sold 2001 Camaro SS SOM M6- sold 1999 Firebird Formula A4- sold

10-29-2015, 12:21 PM	#10
Ajdin@A2BMotorsport Account Suspended Drives: 2013 Camaro 1SS/1LE Join Date: Feb 2013 Location: Waterloo Posts: 609	+1 BTR .660 springs

11-04-2015, 08:02 AM	#11
GTOWN Drives: Holden HSV Clubsport LS3 Join Date: Jan 2015 Location: Australia Posts: 41	Ok guys thanks for the replies..... The car is back on the road, the tuner put in BTR Dual kit, and im alittle bemused but reakons it had comp 650' lift single springs but on my invoice its says the part numbers for 918s and furthermore I have the comp box with my std springs which is for 918's, never the less, one spring snapped clean in half, no damage to the engine, so I got extremely lucky on this one, but im very happy the shop did the right thing and fixed the car and new springs for free....happy days are here again .

11-07-2015, 03:23 PM	#12
Fast6.3 Drives: 2016 2SS coupe 2015 3LT Stingray Join Date: Aug 2012 Location: El paso texas Posts: 880 View My Garage	Thats nice that the shop stood behind their work __________________ Ported intake manifold and throttle body kooks 2" headers no cats

11-10-2015, 09:28 AM	#13
spadz93 BUMBL Z Drives: 2015 ZL1 Join Date: Nov 2013 Location: Northern NJ Posts: 2,573 View My Garage	I've seen way too many people talk about the BTR .660 springs. Don't have them personally yet, but when I get my build done, i'm using those __________________ Current: 2015 ZL1 M6, Rotofab Intake, LS3 throttle body, 2.55 Upper/9.17 Lower w/ Idler Relocation, DMS Reinforced Brick, ID1050X, 1 7/8" Headers, ProSpeed HX/Reservoir, DSX Aux Pump/Flex Fuel Sensor, E85, McLeod RXT, BMR 1" Drop, Tuned by Pat G Past: 2010 2SS, some bolt ons, 415rwhp/400rwtq

11-13-2015, 10:45 AM	#14
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,669	Texas Speed has a .660 lift spring kit using pac doubles on special right now! You can also get a tsp camshaft with Callies camshaft core in 5150 or 8620 materials! As you can imagine a Callies core is top notch and so a cam failure is very unlikely!